Thank you for viewing! ☆ Brand new, unused ☆ Free shipping [Anti-mouth breathing and snoring measures] The material uses high-quality medical-grade mesh neoprene. Unlike common nylon and polyurethane, it has excellent breathability and elasticity. It is a lightweight design that does not feel uncomfortable even when worn all night and leaves no marks on the face, providing a comfortable fit. [High stability and adjustability] Our product supports users so that it does not fall off even when worn all night and does not feel uncomfortable when sleeping on their side, through a special four-sided structure. This chin strap anti-snoring device is suitable for snoring caused by backward movement of the lower jaw, oral breathing, and sleep posture problems. [Breathable & Washable] The head-band type chin strap for anti-snoring goods has excellent breathability and quickly dissipates heat, so there is no stuffiness during sleep. It prevents dryness of the mouth and throat. It can be used repeatedly and can be washed regularly to keep it clean. We promise a comfortable, sound sleep without snoring until morning. [How to use] Step 1: Hold the longest loop part of the strap (loop side up) with your left hand and the small hook part of the strap (hook side down) with your right hand. Step 2: Adjust the loop strap so that the Velcro is securely fixed on the top of your head. Step 3: Connect the loop and hook on the back of your head, adjust the loop to secure the back of your head. Try opening and closing your mouth, and if it is not yet completely fixed, readjust the loop of the top strap.